Damper-regulator.



G. AMBRUSTEB. L H.v MoK. BECK.

DAMPBB REGULATOR.

APYLIOA'HON FILED JAN. 12, 190s.

,Patented 11111.l 12,1910.

Ammew a GRAHAM co.. PucTuLrlNoGRAPMERS. wnsnmmn.- 6.12-

G. AMBRUSTER & H. MaK. BEUR. DAMPER REGULATOR.

l APPLICATION FILED JAN. 12, 1906. n gqsg v Patented Apr. 12,1910.

2 SHEETS-SHEET 2.

STATES T EFI@ DAMPER-REGULA'IOR.

To @ZZ whom t may concern:

Be it known that we, CORNELIUS AM- BRUSTER and HAROLD MGK. BECK, residents of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Damper-Begulators; and we do hereby declare that the following is a full and true description thereof, reference being had to the accompanying drawings.

Cur invention relates to that class of devices which have for their purpose the regulation of furnace drafts by the automatic opening and closing of the pipe and door dampers, and has special reference to that class of devices where-in electricity is used to actuate the device.

In the drawings, Figure 1 is a perspective of our regulator, Fig. 2 is a rear view and Fig. 3 is a sectional. end view of the same. Fig. 4c is a diagram of the electrical connections of our device; Fig. 5 is a detail of a modification of our crank and Fig. 6 is a detail of our device.

More particularly described, A represents the chest in which our motor mechanism isY inclosed, and consists of a metallic chamber designed to be attached to a wall or ceiling.

B represents the double crank which carries the connections with the pipe and door dampers. This crank B has a journal bearing in said chest A and is in two parts heldl together by a clamping screw Z) which permits of the adjustment of said crank B. rIhe crank B carries two opposed crank ends Z and b2, which by means of chains c and m1, are connected with the pipe and door danipers respectively. Upon the shaft of the crank B, near the face of the chest A, is placed a sprocket C, which is fitted with interior cam shoulders c c. Through a suitable perforation inthe diameter of the crank B in opposition to cams c c, a pin Zia rides loosely and engages with the cams o c. Upon this sprocket C is placed a chain c1 which has attached to its end a weight c2.

In operation, when the weight c2 shall have reached the lower end of the pin c1, the weight may again be drawn up to the crank B by the reverse action of the sprocket C, and without the rotation of the crank B;

the sprocket C moving independently of the crank B. On the opposite end of the crank B, or the end which projects within the chest A, there is fixed a cross arm Zit. Upon either end of this cross arm b4, are Xed studs b5,

Speccaton of Letters Patent.

Application filed January 12, 1905.

Serial N0. 295,676.

which project forward toward the front face of chest A, but do not have contact with the same. Also upon the forward face of the cross arm Zit, is fixed a tongue spring o6, which is designed to eiect the electrical connection hereinafter described. Attached to one end of the cross arm Zit, and also to the wall of the chest A, is an air check l? which has for its purpose the control of the cross arm bt. Upon the inner face of the chest- A is attached an electro-magnet D. In opposition thereto is fixed an armature Z which has rocking connection with said chest A at the point cZl; a stop Z2 is also rockingly connected with the chest A at the same point Z1. rllhe end of the stop Z2, nearest the cross arm Zit, being further removed from the rocking point Z1 than the opposite end thereof, the said end nearest the said cross arm lies normally downward. To prevent its dropping beyond the point desired, a small block Z3 is attached to the face of the chest A and acts as a stop to check the said downward movement. Armature Z is fitted at its forward end with a small stud which engages a perforation in the stop Z2 and enables the armature Z to act as a hammer to lift the stop cZ2 at the desired time. rI`he stop Z2 is so placed that normally it lies in contact with one of the studs b5. This stop, Z2 is added in the device for releasing the cross arm Zr* in order that the release may be effected by a hammer blow of the said armature Z upon' said stop (Z2. This affords the opportunity of using very much less voltage than would be necessary were the armature d engaged directly with the cross arm Z)4 and allows us to use a more economical amount of electrical power. Devices of this character have been erected heretofore wherein the armature had direct engagement with the cross arm Z)Ax and in practice it is discovered that too much electrical power is needed to effect the release to make the device commercially possible. Our hammer blow device overcomes this objection.

In operation when an electric circuit is completed and the current sent through the electro-magnet D, the armature Z is drawn into contact with the said electro-magnet and acting upon the stop Z2, it lifts it out of contact with the stud Z. The cross arm Zit is then released and the crank B subject to the action of the weight c2, the weight then drops and the crank revolves thereby opening or closing the draft as the case may Patented Apr. 12, 1910.

be; the revolution of the crank and the cross arm Zit being controlled by the air check P. Then the cross arm b4 starts the revolution, the electric circuit is broken and the stop Z2 drops back into its engaging position. Therefore, when the cross arm b4 has completed a semi-revolution, the opposite stud b5 comes into contact with the stop Z2 and the revolution of the crank B is checked.

In Fig. 5, we illustrate a modification of the crank B showing the crank formed of three pieces, S, S1 and S2. The parts S and S2 are slotted and S1 is fitted with shoulders to engage said slots and S1 is threaded upon the ends to engage the thumb nuts s s. The points 81 8l represent the bearing faces which engage the chains x and m1, described hereinbefore, and by use of the slotted connection just described the swing of the points s1 s1 in the revolution of the crank may be regulated to care for the different dampers to which the device may be attached.

It is our design to operate our device by means of electric circuits. To this end, we provide the plugs E and El, which project through the face of the chest A and are insulated therefrom. The inner ends of the said plugs are arranged in opposition to the spring tongue 7) attached to the cross arm t* and in the revolution of the cross arm of, the spring tongue 5U engages alternately the said plugs E and El. Also passing through the face of the chest A, and insulated therefrom is the plug E2.

life design a thermostat which is connected permanently through a battery V with the plug E2, and therefrom with the electro magnet D. A connection is made between the magnet D and the chest A, and the cross arm L* being' in direct connection with the chest takes the electric contact from the said chest A. The thermostat T has connection with the plugs E and El, one of which plugs is at all times, when the device is at rest, in contact with the spring tongue o, and through it in contact with the cross arm and the chest A. `We provide in the electric circuits a clock device N, by means of which t-he current can be broken. One wire is connected with the clock and insulated therefrom at n to which point a stud protrudes from the clock. The other wire is connected with the alarm key nl, which in the winding of the alarm is turned away from the stud n. Then the alarm is released the key nl revolves until it comes into contact with the stud n which closes the circuit.

In order to operate the device without the use of the thermostat T we provide a short circuit by tapping the battery wire at M and connecting it by means of a spring contact with the other wire grounded in the chest A. By the use of this short circuit, the dampers may be opened or may be closed at will, without the use of the thermostat to close the circuit.

that we claim as our invention is :q

l. ln a damper regulator, the combination with a mechanism consisting of a crank shaft, opposed cranks secured to said shaft, means for connecting said cranks with dampers and weight adapted to revolve said shaft, a thermostat, an electro-magnet and an armature litted f'ith a lug projecting from the face thereof, of a stop adapted to hold said shaft against the action of said Weight, said stop being fitted with an aperture larger than the said lugtitted upon the said armature, said lug being adapted to lie within the aperture of said stop, whereby the said armature being attracted to said magnet, strikes a hammer blow against the apertured side of said stop thereby releasing the said shaft, substantially as described and for the purposes herein set forth.

2. In a damper regulator, the combination with a thermostat, a crank shaft, 0pposed cranks attached thereto, means for connecting said cranks with dampers, a weight adapted to revolve said shaft, a stop adapted to hold said shaft against the action of said weight, of a mechanism consisting of a hammer adapted to strike a blow uponthe said stop whereby the said shaft is released from the said stop, and electrical means for driving said hammer.

3. Tn a damper regulator, the combination with a thermostat and crank shaft, opposed cranks secured thereto, a sprocket engaging said shaft, means whereby said sprocket is allowed to turn freely in one direction and to be held rigidly against movement in the opposite direction upon said shaft, a weight bearing chain fitted upon said sprocket, a stop engaging said shaft, of a hammer adapted to engage said stop by hammer blow whereby said shaft is released from said stop, electrical means whereby said hammer is actuated, means for rengaging said shaft with said stop, and a dash pot adapted to control the speed of the revolution of the said shaft.

a. Tn a damper regulator, the combination with a thermostat, a crank shaft, opposed cranks attached thereto, means for connecting said cranks with dampers, a weight. adapted to revolve said shaft, a stop adapted to hold said shaft against the action of the said weight, of means for releasing the said shaft from the said stop, consisting of a hammer and electrical means for driving the said hammer against the said stop.

5. In a damper regulator, the combination with a thermostat, a crank shaft, opposed cranks attached thereto, means for connecting said cranks with dampers, a weight adapted to revolve the said shaft, a stop adapted to hold said shaft against the action of the said Weight, of a mechanism adapted to release the said shaft from the said stop consisting of a hammer and electrical means for driving the same against said stop, and automatic means for rengaging said shaft with said stop.

6. In a damper regulator, the combination of a damper controlling motor, a stop for arresting the operation of said motor at certain predetermined intervals of its motion, an electric circuit, a thermostat for making and breaking said electric circuit and a hammer for releasing said stop, said electric circuit constituting the means for driving said hammer against said stop for releasing the latter, substantially as described.

7. In a damper regulator, the combination of a damper controlling motor, a retardingl means therefor, a stop for arresting .the operation of said motor at certain predetermined intervals of its motion, an electric circuit, a thermostat for making and breaking said electric circuit and a hammer for releasing said stop, said electric circuit constituting the means for driving said hammer against said stop for releasing the latter, substantially as described.

8. In a damper regulator, the combination of a damper controlling motor, a stop for automatically arresting the operation of said motor at certain predetermined intervals of its motion, an electric circuit, a thermostat for making and breaking said electric circuit, a hammer for releasing said stop, said electric circuit constituting means for actuating the said hammer, the said hammer being automatically restored to its striking position.

9. In a damper regulator, the combination of a damper controlling motor, a stop for automatically arresting the operation of said motor at certain predetermined intervals of its motion, a hammer for releasing said stop and means for actuating said hammer, the said hammer being automatically restored to its striking position.

10. In a damper regulator, the combination of a damper controlling motor, a retarding means therefor, a stop for automatically arresting the operation of said motor at certain predetermined intervals of its motion, a hammer for releasing said stop, and

means for actuating said hammer, the said hammer being automatically restored to its striking position.

11. In a damper regulator, the combination of a damper controlling motor, a retarding means therefor, a stop for automatically arresting the operation 'of said motor at certain peredetermined intervals of its motion, a hammer for releasing said stop and means for actuating said hammer, the

parts being so constructed and arranged that4 the hammer is caused to strike said stop and to be automatically restored to its striking position.

12. In a damper regulator, the combination of a damper controlling motor, a retarding means therefor, a stop for automatically arresting the operation of said motor at certain predetermined intervals of its motion, a hammer for releasing said stop and thermostat controlled means for actuating said hammer, the parts being so constructed and arranged that the hammer is caused to strike said stop and to be automatically restored to its striking position.

13. In a damper regulator, the combination of a damper controlling motor, a stop for automatically arresting the operation of said motor at certain predetermined intervals of its motion, a hammer for releasing said stop and means for actuating said hammer, the parts being so constructed and arranged that the hammer is caused to strike said stop and to be automatically restored to its striking position.

14C. In a damper regulator, the combination of a damper controlling motor, a stop for automatically arresting the operation of said motor at certain predetermined intervals of its motion, a hammer for releasing said stop and thermostat controlled means for actuating said hammer, the parts being so constructed and arranged that the hammer is caused to strike said stop and to be automatically restored to its striking position.

CORNELIUS AMBRUSTER. HAROLD MCK. BECK.

Witnesses:

HUGH H. HADLnr, WILLn'rr H. CORNWELL. 

